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Finding the Fourth Proportional to 625,071.77, 862,603.18 and 338,591.85

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Solution

The fourth proportional to 625,071.77, 862,603.18 and 338,591.85 is: 467,259.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,071.77 : 862,603.18 = 338,591.85 : x
  2. Step 2: Convert to fraction form
    625,071.77/862,603.18 = 338,591.85/x
  3. Step 3: Cross multiply
    625,071.77x = 862,603.18 × 338,591.85
  4. Step 4: Simplify right side
    625,071.77x = 292,070,404,839.12
  5. Step 5: Solve for x
    x = 292,070,404,839.12/625,071.77
  6. Step 6: Final answer
    x = 467,259.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.